{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbf5f82cf2444a2b8753b6d284d2d2070e4a407248ea0a59db089cfda69224db4",
    "signature": "0xa194cbc405fff5e80a18d08286560afecdfaccfccd1f025c012ff633c2b213bd2a50180c829ce7770ecd3836fe0e6eeab7c391d84338ff7a2902b2b58f6ff02f1c",
    "signer": "0xB40681d7f22Ca9DF445462c4d538d93Fc32CD3Cf",
    "userId": "72668053"
  }
}